CN114608635B - Reusable microarray self-adhesive optical fiber sensor and preparation method thereof - Google Patents
Reusable microarray self-adhesive optical fiber sensor and preparation method thereof Download PDFInfo
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- CN114608635B CN114608635B CN202210225158.3A CN202210225158A CN114608635B CN 114608635 B CN114608635 B CN 114608635B CN 202210225158 A CN202210225158 A CN 202210225158A CN 114608635 B CN114608635 B CN 114608635B
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- 238000002493 microarray Methods 0.000 title claims abstract description 85
- 239000013307 optical fiber Substances 0.000 title claims abstract description 72
- 239000000853 adhesive Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title description 7
- 239000011247 coating layer Substances 0.000 claims abstract description 30
- 239000011664 nicotinic acid Substances 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- 239000000741 silica gel Substances 0.000 claims description 19
- 229910002027 silica gel Inorganic materials 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 11
- 238000005530 etching Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 6
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 239000004945 silicone rubber Substances 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 4
- 239000000499 gel Substances 0.000 claims description 3
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims description 3
- -1 polydimethylsiloxane Polymers 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 3
- 238000005411 Van der Waals force Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
- B81C1/00436—Shaping materials, i.e. techniques for structuring the substrate or the layers on the substrate
- B81C1/00444—Surface micromachining, i.e. structuring layers on the substrate
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
- G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Transform (AREA)
Abstract
The application discloses a reusable microarray self-adhesive optical fiber sensor, which comprises an optical fiber sensor, a microarray self-adhesive coating layer and a protection tube; the surface of the microarray self-adhesion coating layer is covered with a bionic gecko microarray structure, the bionic gecko microarray structure is formed by splicing a plurality of cylindrical array units, the protection tube is embedded in the microarray self-adhesion coating layer, and the optical fiber sensor penetrates through the protection tube and is arranged in the microarray self-adhesion coating layer. The reusable microarray self-adhesive optical fiber sensor has a self-adhesive function, and can rapidly finish the adhesion of the optical fiber sensor on the surface of a measured object and the measurement of the strain and the temperature of the object. The application combines the optical fiber sensing technology with the microarray self-adhesive material, prepares the circular coating layer of the traditional optical fiber into a rectangular coating layer again, expands the contact area between the sensor and the surface of the measured object, improves the measurement accuracy and the adhesion performance, and can be applied to measuring the strain and the temperature of the object which is not suitable for coating additional adhesive.
Description
Technical Field
The application relates to the field of sensors, in particular to a reusable microarray self-adhesive optical fiber sensor and a preparation method thereof.
Background
The optical fiber sensor is widely applied in the aspect of equipment state monitoring due to the advantages of electromagnetic interference resistance and sensitivity, but the optical fiber sensor is small in size and light in weight, and is difficult to fix the optical fiber on the surface of a measured object, the optical fiber sensor is fixed in a viscose mode in the prior optical fiber sensor in use, the surface of the measured object is easily polluted or even damaged by the application of the viscose, and the measured object is easily deformed due to the fact that the thermal expansion coefficient of the viscose is not matched with that of the measured object, so that the measured object is permanently damaged. And once the optical fiber sensor is fixed by adopting the adhesive, the optical fiber sensor is permanently fixed on the surface of the measured object, the optical fiber sensor cannot be repeatedly used for a plurality of times, and the optical fiber sensor cannot be flexibly configured according to working conditions, for example, the optical fiber sensor is taken down after a certain part is temporarily measured.
Disclosure of Invention
In order to overcome the defects that the optical fiber sensor cannot be repeatedly used by direct adhesion and fixation and is inflexible in configuration in the prior art, the application provides the reusable microarray self-adhesive optical fiber sensor and the preparation method thereof, and the reusable microarray self-adhesive optical fiber sensor has a self-adhesive function, can rapidly complete the adhesion of the optical fiber sensor on the surface of a measured object, and realizes repeated use for a plurality of times.
To achieve the purpose, the application adopts the following technical scheme:
the application provides a reusable microarray self-adhesive optical fiber sensor, which comprises an optical fiber sensor, a microarray self-adhesive coating layer and a protection tube; the surface of the microarray self-adhesion coating layer is covered with a bionic gecko microarray structure, the bionic gecko microarray structure is formed by splicing a plurality of cylindrical array units, the protection tube is embedded in the microarray self-adhesion coating layer, and the optical fiber sensor penetrates through the protection tube and is arranged in the microarray self-adhesion coating layer.
The application also provides a preparation method of the reusable microarray self-adhesive optical fiber sensor, which comprises the following steps,
s1, preparing a die with a micro-array self-adhesive coating layer structure on a bottom plate by adopting an etching processing method;
s2, arranging the optical fiber sensor above the die bottom plate, and applying tension outwards from two ends of the optical fiber sensor to enable the optical fiber sensor to be in a tense state;
s3, pouring silica gel into the mold, and taking out after the silica gel is solidified.
In a preferred technical scheme of the application, the die comprises a main body, a microarray structure bottom plate, a positioning clamp, a cover plate and a pipeline; the apron articulates in the main part, and the both sides of main part all are fixed with positioning fixture, have seted up the mould die cavity in the main part, and microarray structure bottom plate sets up in the bottom of mould die cavity, has seted up the gate on the apron, and the pipe connection is on the gate.
In the preferred technical scheme of the application, the microarray structure bottom plate is prepared in an etching mode, and micro-scale micro-holes of the microarray structure are formed on the surface of the microarray structure bottom plate.
In the preferred technical scheme of the application, the silica gel is prepared into PDMS polydimethylsiloxane silicone rubber according to the proportion of the main agent to the curing agent of 10:1, and a vacuum pump is adopted to pump silica gel bubbles.
In the preferred technical scheme of the application, in S3, the silica gel is poured into the pipeline, and the silica gel flows into the die cavity along the pipeline to be solidified and molded.
In a preferred embodiment of the application, the body is heated to 80 ℃ and held for 15 minutes after the silicone gel has flowed into the mold cavity.
In the preferred technical scheme of the application, after solidification is completed, the manufactured sensor is demolded from the die and taken out.
The beneficial effects of the application are as follows:
the reusable microarray self-adhesive optical fiber sensor provided by the application has a self-adhesive function, and can be used for rapidly finishing the adhesion of optical fibers on the surface of a measured object. The application combines the optical fiber sensing technology with the microarray self-adhesive material, prepares the round coating layer of the traditional optical fiber into a rectangular coating layer again, expands the contact area between the sensor and the surface of the measured object, forms a microarray self-adhesive structure on the contact surface of the coating layer, improves the measurement accuracy and the adhesive performance, and can be applied to measuring the strain and the temperature of the object which is not suitable for coating additional adhesive. Avoiding the adhesive from polluting or damaging the measured object. Besides being attached to the surface of the measured object, the sensor can be completely removed from the surface of the measured object after measurement is completed, and no damage is caused to the measured object, so that convenience is brought to flexible arrangement of the multi-working-condition sensor.
Drawings
FIG. 1 is a schematic diagram of a one-dimensional monitoring structure of a reusable microarray self-adhesive fiber optic sensor according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a two-dimensional monitoring structure of a reusable microarray self-adhesive fiber optic sensor according to an embodiment of the present application;
FIG. 3 is a schematic illustration of a reusable microarray self-adhesive optical fiber sensor attachment mechanism according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a manufacturing mold of a reusable microarray self-adhesive optical fiber sensor according to an embodiment of the present application;
FIG. 5 is a schematic illustration of attachment of a reusable microarray self-adhesive fiber optic sensor according to an embodiment of the present application;
FIG. 6 is a schematic view of monitoring a reusable microarray self-adhesive fiber optic sensor according to an embodiment of the present application;
fig. 7 is a schematic diagram of stripping of a reusable microarray self-adhesive fiber sensor according to an embodiment of the present application.
In the figure:
the device comprises a 1-optical fiber sensor, a 10-measured object, a 2-microarray self-adhesive coating layer, a 21-bionic gecko microarray structure, a 3-protection tube, a 4-main body, a 5-microarray structure bottom plate, a 51-microarray structure micropore, a 6-positioning clamp, a 7-mold cavity, an 8-cover plate, 81-pouring gates and 9-pipelines.
Detailed Description
The technical scheme of the application is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1-2, there is provided in an embodiment a reusable microarray self-adhesive optical fiber sensor comprising an optical fiber sensor 1, a microarray self-adhesive coating layer 2, and a protective tube 3; the surface of the microarray self-adhesion coating layer 2 is covered with a bionic gecko microarray structure 21, the bionic gecko microarray structure 21 is formed by splicing a plurality of cylindrical array units, the protection tube 3 is embedded in the microarray self-adhesion coating layer 2, and the optical fiber sensor 1 passes through the protection tube 3 and is arranged in the microarray self-adhesion coating layer 2.
The optical fiber sensor 1 is used for measuring parameters such as strain or temperature of the measured object 10, and can be used for realizing point measurement by adopting an FBG optical fiber grating sensor or realizing distributed measurement by adopting a common optical fiber matched with a distributed optical fiber sensing demodulator. The micro-array self-adhesive coating layer 2 is wrapped on the outer side of the optical fiber sensor 1, the bionic gecko micro-array structure 21 on the outer side of the micro-array self-adhesive coating layer 2 can be directly attached to the surface of the measured object 10, the contact area between the bionic gecko micro-array structure 21 and the surface of the measured object 10 can be enlarged, van der Waals force is increased, and adhesion can be achieved without being matched with additional adhesives. The protection tube 3 is arranged between the optical fiber sensor 1 and the microarray self-adhesive coating layer 2 and is used for protecting the optical fiber sensor 1 and preventing the optical fiber sensor 1 from being damaged.
As shown in fig. 3 and 5-7, since the surface of the measured object 10 is not smooth, the surface of the measured object 10 is provided with pits when the measured object 10 is observed from a microscopic level, and the bionic gecko microarray structure 21 can fill the gap between the optical fiber sensor 1 and the surface of the measured object 10, and increase the contact area between the optical fiber sensor 1 and the surface of the measured object 10, thereby increasing the van der waals force between the sensor and the measured object 10. After the measurement is completed, the self-adhesive coating layer 2 of the microarray is pulled up from one side, so that the bionic gecko microarray structure 21 gradually falls off from the measured object 10, and finally the whole sensor is separated, and the measured object 10 is not influenced, so that the reusable self-adhesive optical fiber sensor of the microarray is repeatedly utilized.
The application also provides a preparation method of the reusable microarray self-adhesive optical fiber sensor, which comprises the following steps,
s1, preparing a die with a micro-array self-adhesive coating layer structure on a bottom plate by adopting an etching processing method;
s2, arranging the optical fiber sensor 1 above a die bottom plate, and applying tension outwards from two ends of the optical fiber sensor 1 to enable the optical fiber sensor to be in a tensed state;
s3, pouring silica gel into the mold, and taking out after the silica gel is solidified.
The processing method of etching in S1 mainly processes the microarray structure substrate 5, and micro-scale micro-holes 51 are formed on the surface of the microarray structure substrate 5. And S2, after the optical fiber sensor 1 is straightened, clamping the two ends of the optical fiber sensor 1 by a clamp of a die, keeping the optical fiber sensor 1 in a straightened state, and then carrying out subsequent silica gel pouring and curing.
Further, as shown in fig. 4, the mold includes a main body 4, a microarray structure base plate 5, a positioning jig 6, a cover plate 8, and a pipe 9; the apron 8 articulates on main part 4, and the both sides of main part 4 all are fixed with positioning fixture 6, have seted up mould die cavity 7 on the main part 4, and microarray structure bottom plate 5 sets up in the bottom of mould die cavity 7, has seted up pouring gate 81 on the apron 8, and pipeline 9 is connected to on the pouring gate 81. When manufacturing, the optical fiber sensor 1 is first straightened and put on the main body 4, the two sides of the optical fiber sensor 1 are clamped by the positioning fixtures 6 at the two sides of the main body 4, the optical fiber sensor 1 is positioned right above the bottom plate 5 of the microarray structure, and then the cover plate 8 is closed. And pumping the prepared silica gel into solution bubbles by utilizing a vacuum pump, then introducing the silica gel into a pipeline 9, injecting the silica gel into a mold cavity 7 from a pouring opening 81 through the pipeline 9, curing the silica gel in the mold cavity 7 to form a microarray self-adhesive coating layer 2, and taking out the flexible microarray self-adhesive optical fiber sensor 1 after demolding to finish the preparation.
Further, the microarray structure substrate 5 is prepared by etching, and micro-scale micro-holes 51 are formed on the surface of the substrate. In addition, the diffraction grating processing mode can be used for replacing etching processing, so that the purpose of saving cost is achieved.
Further, the silicone rubber was formulated with PDMS polydimethylsiloxane silicone rubber at a ratio of main agent to curing agent of 10:1, and a vacuum pump was used to pump the silicone rubber bubbles.
Further, in S3, the silicone is poured into the pipe 9, and the silicone flows into the mold cavity 7 along the pipe 9 to be cured and molded.
Further, after the silicone gel flowed into the mold cavity 7, the main body 4 was heated to 80 ℃ and held for 15 minutes to improve the curing effect.
Further, after the curing is completed, the manufactured sensor is taken out of the mold.
Other techniques of this embodiment employ the prior art.
While the application has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the application. The application is not to be limited by the specific embodiments disclosed herein, but rather, embodiments falling within the scope of the appended claims are intended to be embraced by the application.
Claims (5)
1. A reusable microarray self-adhesive fiber optic sensor, characterized by: comprises an optical fiber sensor (1), a microarray self-adhesive coating layer (2) and a protective tube (3);
the surface of the microarray self-adhesion coating layer (2) is covered with a bionic gecko microarray structure (21), the bionic gecko microarray structure (21) is formed by splicing a plurality of cylindrical array units, a protection tube (3) is embedded in the microarray self-adhesion coating layer (2), and an optical fiber sensor (1) penetrates through the protection tube (3) and is arranged in the microarray self-adhesion coating layer (2);
the method also comprises the following steps of,
s1, preparing a die with a micro-array self-adhesive coating layer structure on a bottom plate by adopting an etching processing method;
s2, arranging the optical fiber sensor (1) above a die bottom plate, and applying tension outwards from two ends of the optical fiber sensor (1) to enable the optical fiber sensor to be in a tense state;
s3, pouring silica gel into the mold, and taking out after the silica gel is solidified;
the die comprises a main body (4), a microarray structure bottom plate (5), a positioning clamp (6), a cover plate (8) and a pipeline (9);
the cover plate (8) is hinged to the main body (4), positioning fixtures (6) are fixed on two sides of the main body (4), a mold cavity (7) is formed in the main body (4), the microarray structure bottom plate (5) is arranged at the bottom of the mold cavity (7), a pouring opening (81) is formed in the cover plate (8), and the pipeline (9) is connected to the pouring opening (81);
the microarray structure base plate (5) is prepared in an etching mode, and micro-scale microarray structure micropores (51) are formed on the surface of the microarray structure base plate.
2. The method for preparing the reusable microarray self-adhesive optical fiber sensor according to claim 1, wherein the method comprises the following steps:
the silica gel is prepared into PDMS polydimethylsiloxane silicone rubber according to the proportion of the main agent to the curing agent of 10:1, and a vacuum pump is adopted to pump silica gel bubbles.
3. The method for preparing the reusable microarray self-adhesive optical fiber sensor according to claim 1, wherein the method comprises the following steps:
in S3, the silica gel is poured into the pipeline (9), and the silica gel flows into the mold cavity (7) along the pipeline (9) for solidification molding.
4. The method for preparing the reusable microarray self-adhesive optical fiber sensor according to claim 1, wherein the method comprises the following steps:
after the silicone gel flows into the mold cavity (7), the body (4) is heated to 80 ℃ and held for 15 minutes.
5. The method for preparing the reusable microarray self-adhesive optical fiber sensor according to claim 1, wherein the method comprises the following steps:
and after the solidification is finished, demolding the manufactured sensor from the mold.
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| CN202210225158.3A CN114608635B (en) | 2022-03-07 | 2022-03-07 | Reusable microarray self-adhesive optical fiber sensor and preparation method thereof |
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| CN202210225158.3A CN114608635B (en) | 2022-03-07 | 2022-03-07 | Reusable microarray self-adhesive optical fiber sensor and preparation method thereof |
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| CN114608635B true CN114608635B (en) | 2023-11-21 |
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